Reiterative Development and Evaluation Study of OSA Therapy System

Inclusion Criteria:

1. Subject is between the ages of 18 and 80.

2. Subject is fluent in English and understands the Study protocol and is willing and
able to comply with Study requirements and sign the informed consent form.

3. Subject has a least one molar in each of the four quadrants of the mouth (right
upper, right lower, left upper, and left lower).

Exclusion Criteria:

1. Poor nasal patency as evidenced by the inability to breathe through the nose with the
mouth closed.

2. Oral cavity infection or any other oral or dental condition or problem that would
limit subject use of the ApniCure System (e.g. dentures, loose tooth/teeth,
temporomandibular joint (TMJ) conditions, or any oral or dental condition that the
Investigator believes could be exacerbated by the Attune Sleep Apnea System.

3. History of any OSA surgical treatment including uvulopalatopharyngoplasty surgery
(UPPP), maxillomandibular advancement surgery (MMA), radio frequency (RF) ablation
treatment, palatal stent devices, etc.

4. Any concomitant diagnosed or suspected sleep or chronic neurological disorders, other
than OSA, including insomnia, and central sleep apnea.

5. Currently working nights, or rotating night shifts.

6. Current disease state, use of medication or other treatment which, in the
investigator's opinion, may pose additional risk to the subject or confound the
results of the study.

7. Female subjects of child bearing age who are pregnant or intend to become pregnant
during the study period.